In 2007, Singapore issued a new series of definitive stamp illustrated flora and fauna. Eight of the whole set stamps are different birds, however some of these birds are not easy find in Singapore, but they are widely live in south-east Asian countries from India to Indonesia, or migrate from northern countries in winter time. They mostly appear in the forest area or conservation parks in this country.

Above cover franked all of 8 stamps which printed in different period, four versions are marked 2007A to 2007D for indicate what version they are. Thanks Lee of his great help of this cover, and wish health of his mother being better.